(DOCSP-9305): Simple CRD/install instructions

Author: melissamahoney-mongodb

README.md

@@ -6,20 +6,73 @@ This is a Kubernetes Operator (https://coreos.com/operators/) which deploys Mong
 
 This codebase is currently _pre-alpha_, and is not ready for use.
 
-If you are a MongoDB Enterprise customer, or need Enterprise features such as Backup, you may be looking for the [MongoDB Enterprise Operator for Kubernetes](https://github.com/mongodb/mongodb-enterprise-kubernetes).
+If you are a MongoDB Enterprise customer, or need Enterprise features such as Backup, you can use the [MongoDB Enterprise Operator for Kubernetes](https://github.com/mongodb/mongodb-enterprise-kubernetes).
 
+## Installation
 
+### Prerequisites
 
+Before you install the MongoDB Community Kubernetes Operator, you must:
 
-## Licensing
+1. Install [kubectl](https://kubernetes.io/docs/tasks/tools/install-kubectl/)
+2. Install [kind](https://kind.sigs.k8s.io/)
+3. Clone this repository.
+   ```
+   git clone https://github.com/mongodb/mongodb-kubernetes-operator.git
+   ```
 
-The source code of this Operator is available under the Apache v2 license.
+### Installing the MongoDB Community Kubernetes Operator
 
-The MongoDB Agent binary in the agent/ directory may be used under the "Free for Commercial Use" license found in agent/LICENSE.
+The MongoDB Community Kubernetes Operator is a collection of [Custom Resource Definitions](https://kubernetes.io/docs/concepts/extend-kubernetes/api-extension/custom-resources/) and a controller.
+
+To install the MongoDB Community Kubernetes Operator:
+
+1. Change to the directory in which you cloned the repository.
+2. Install the [Custom Resource Definitions](https://kubernetes.io/docs/concepts/extend-kubernetes/api-extension/custom-resources/).
+   a. Invoke the following `kubectl` command:
+      ```
+      kubectl create -f deploy/crds/mongodb.com_mongodb_crd.yaml
+      ```
+   b. Verify that the Custom Resource Definitions installed successfully:
+      ```
+      kubectl get crd/mongodb.mongodb.com
+      ```
+3. Install the Operator.
+   a. Invoke the following `kubectl` command to install the Operator in the `default` namespace:
+      ```
+      kubectl create -f deploy
+      ```
+      To install the Operator in a different namespace, append the `--namespace <my-namespace>` option.
+   b. Verify that the Operator installed successsfully:
+      ```
+      kubectl get pods
+      ```
+
+## Usage
+
+The `/deploy/crds` directory contains example MongoDB resources that you can modify and deploy.
+
+### Deploying a MongoDB Resource
 
+To deploy your first replica set:
+
+1. Invoke the following `kubectl` command:
+   ```
+   kubectl apply -f deploy/crds/mongodb.com_v1_mongodb_cr.yaml
+   ```
+2. Verify that the MongoDB resource deployed:
+   ```
+   kubectl get mongodb
+   ```
 
 ## Contributing
 
 Please file issues before filing PRs. For PRs to be accepted, contributors must sign our [CLA](https://www.mongodb.com/legal/contributor-agreement).
 
 Reviewers, please ensure that the CLA has been signed by referring to [the contributors tool](https://contributors.corp.mongodb.com/) (internal link).
+
+## License
+
+The source code of this Operator is available under the Apache v2 license.
+
+The MongoDB Agent binary in the agent/ directory may be used under the "Free for Commercial Use" license found in agent/LICENSE.